Device for connecting motors to organs



(No Model F.v E. WHITNEY. DEVICE POR CONNECTING MOTORS T0 ORGANS. No.387,386.

Patented Aug. 7, 1888.

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Unites STATES PATENT FFTQEO DEViCE FOR CONNECTI SPECIFICATION formingpart of Letters Application filed September 8, i887.

NG MOTORS TO oReANs.

Patent No. 387.386, dated August 7, 1888.

Serial No. 249,089. (No modeLi T0 aZZ whom, it may concern:

Beit known that I, FRANK E. WHITNEY, of Melrose, in the county ofMiddlesex and State of Massachusetts,acitizen of the United States, haveinvented a new and useful Improvement in Devices for Connecting Motorsto Organs, 830., of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart ofthis specification, in explaining its nature.

It is desirable that the air blown into the pipes of an organ should beforced from the bellows with as little irregularity in volume and speedas possible in order to prevent the pulsation of air in the organ. Thisis quite easily accomplished when the bellows are operated by hand,because it is easy to modulate or reduce the speed of the bellows-leverat the ends of its stroke; but where the bellows has been operated by awater-motorthe common way of operating such bellows by powerheretofore-this result has not been accomplished, and for the reasonthat the movement given to the bellows by the motor is one that has thesame rate of speed throughout, so that upon the reversal of the strokeof the bellows-lever a thump or blow has been given theair forcedtherefrom, which communicates pulsation or tremor to the air throughoutthe air-pipe passages in the organ. To overcome this difficulty and topermit a water-motor to be employed have devised a connection betweenthe piston of the motor and the bellows which communi cates the power ofthe motor to the bellows with a varying degree of movement-that is, themovement of the bellows is reduced at each end of its throw, so that theeffect of a hand operation of the bellows is provided, and the air isforced therefrom in a steady continuous flow with no thump or vibration.This result is obtained by introducing between the bellows'arm or leverand the piston a crank adapted to be operated by the piston, and soadjusted or placed that the end of its upward movcmentand ofits lowermovement coincides with the end of the upward movement of thebellows-lever and of its lower movement. This gives to the bellows-levera variable speed or movement which is slow at the beginning of itsupward or downward move ment, or at its start in either direction, andis faster between these points, gradually accelerating to the middle ofthe stroke and gradu ally slowing from the middle to the end. This crankmay be connected with the piston in a number of ways, which [haveillustrated. I. prefer, however, the one employing a wireropeconnection.

In the drawings, Figure l is a View in perspective of a machinecontaining the features of my invention. Fig. 2 is a view thereof partin elevation and part in vertical section. .Figs. 3 and 4 are detailviews in section. Figs. 5 and 6 illustrate modified forms ofconstruction, to which reference will hereinafter be made.

A represents the motor. It comprises,generally,a cylinder containing apiston and valves governing the inlet and exhaust of the water. Any formof water-motor may be used.

ais the piston-rod.

a is a long head or bar, the lower end of which is in the form of across-head, a secured to the upper end of the piston-rod. Thiscross-head has the guide-rods a, which play in holes in the frame A. Thebar a has the ends a, which project from one side thereof, through whichholes a are formed, and the recess a upon the opposite side; and. thereis secured to the ends of this bar a rope, B, prefferably of wire, andin a manner to be ad justable as to length. This rope passes once abouta drum, 0, pivoted to a bracket, c,at c, and is fastened thereto by ahook or clamp, 0, one end of which bears upon the rope and the other endof which extends through a hole in the drum and receives a,fastening-nut, by which its end 0 is locked against the rope. (See Fig.4.) The drum 0 has a crank, D, which is connected with the bellows-leverby a link or connecting-rod, d. Each end of the rope is secured in ascrew-sleeve, d, having a hole tapering outward by untwisting the endsof the wire and bending them back upon themselves in the enlargedportion of the hole to wedge the end of the rope in the hole. Thissleeve has a screw-thread, which receives the nut (P, that bears againstthe end of the bar,and by turning this nut the sleeve is moved in onedirection or the other, according as the nut is rotated.

The head a is provided with a rod, 6, connecting it with a lever, c, ofthe valveoperating mechanism.

In operation the upward movement of the piston and bar causes the drumto be turned and the crank to be moved in an upward direction from aposition slightly beyond its lower center to a position slightly pastits upper center, and a reverse or downward movement of the piston andbar causes a reverse movement of the crank. Of course the crankcommunicates no movement to the connecting link or rod when its centeris in a vertical line with the center of its operating-drum, and fromsaid point it communicates a gradually-accelcrating movement until itscenterhas reached a horizontal line passing through the center of thedrum, and from this line the movement is gradually retarded to the endof the stroke.

In Fig. 6 I represent in lieu of the connecting.rope the bar as formedwith a rack and the drum as a pinion; but I prefer the rope becausethere is no jar or backlash.

In Fig. 5 I represent the employment of the bar as a rack in connectionwith a stationary 1'ack,and with a pinion or gear having a crank andheld between two racks. This pinion has a crank; but as it is movedvertically by the movable rack as well as turned the increase anddecrease of the movement at the end of the stroke are not so gradual aswhen the crank only is caused to move.

I would state that I do not confine the invention to the operation oforgan-bellows,and would also say that it can be used with any othermotor than water-motors.

Having thus fully described my invention, I

claim and desire to secure by Letters Patent of the United States- 1.The combination,in an apparatus for operating organ-bellows, of a motor,a reciproeating head or bar operated by said motor,and a crank connectedwith said bar and operated thereby to travel from its lowest to itshighest position and reverse coincidently with the upward and downwardmovements of the bar, and a rod or link connecting the crank to thedevice to be operated, substantially as described.

2. The combination, in devices for connecting motors to organs, of awater-motor, and a reciprocating bar attached to the water-motor to bereciprocatcd thereby, and having the rope or cord B, with the drum 0, asupport for the same, and the crankD,connected with said drum, and alink connecting said crank with the device to be operated, substantiallyas described.

3. The combination, in devices for connect I ing motors to organs, 820.,of a bar, B, having a recess, a", and ends a", provided with holes a,screw-threaded sleeves d,to which the ends of the rope are secured, andthe adjustingnuts d", the drum 0, crank D, and connecting rod or link(Z, substantially as described.

FRANK E. WHITNEY.

In presence of- F. F. RAYMOND, 2d, FRED.- B. DOLAN.

